T5L1 Abiotic and biotic factors

Question 1

Explain what zonation is and how it occurs

Answer 1

The distribution of organisms in a specific pattern due to changing characteristics. In different parts of an ecosystem different organisms need to be adapted to varying levels of biotic factors

Question 2

What is a niche

Answer 2

The role of an organism in an ecosystem - where it lives and how it interacts with other organisms

Question 3

Name the abiotic factor that describes how steep land is

Answer 3

Topography

Question 4

Name the abiotic factor that describes how salty the sea is

Answer 4

Salinity

Question 5

Name the abiotic factor that describes the soil

Answer 5

Edaphic factors

Question 6

Name the abiotic factor that describes the minerals and sediment in the water

Answer 6

Turbidity

Question 7

What are anthropogenic factors

Answer 7

Human activty that affects an ecosystem

Question 8

Give examples of anthropogenic factors

Answer 8

Deforestation
Urbanisation
Oil spills
Effluent

Question 9

What is mutualism

Answer 9

A relationship between species un which both parties benefit

Question 10

Name and explain the two types of competition

Answer 10

Interspecific - between different species in the same niche
Intraspecific - between members of the same species

Question 11

Explain the different abiotic factors present in forests vs seashore

Answer 11

Seashore - salinity, o2 conc, turbidity
Forest - deforestation, topography, edaphic pH

Question 12

Why do the species present at the seashore change as you get into drier conditions

Answer 12

Because as the conditions change each zone is exposed to different abiotic and biotic factors so different organisms have different specific adaptations to deal with the specific conditions of their zones

Question 13

Name the t